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Ram Horn Turbo Manifold (T3+T4 Dual Pattern 46mm) - Honda B-Series


WARNING: Cancer and Reproductive Harm www.P65Warnings.ca.gov

BLOX Racing’s Ram Horn is available for Honda B-series engines and features a unique dual-pattern turbo inlet flange.  This industry-first will give the customer the choice of starting with a T3 turbo and later upgrading to a T4 without having to purchase a brand new manifold.

The manifold also features a V-band wastegate flange that will accommodate 44mm-46mm wastegates from most popular brands.

Manifolds are constructed from Schedule 30 T304 stainless steel and TIG-welded.  The 11mm thick flanges provide additional strength and rigidity.  The ram horn design features equal length runners that create quicker spooling of larger turbos.  The ram horn’s bottom mount design also provides a more compact fitment, compared to its Top Mount counterpart.

Turbo Manifold Specs & Notes

  • T304 stainless steel; Schedule 40
  • Mandrel-bent tubing; TIG-welded
  • T3 & T4 dual pattern open inlet flange
  • 44mm/46mm wastegate V-band flange
  • 11mm thick flanges
  •  Equal length runners
  • Can accommodate up to T4 with S-cover
  • Cannot use factory A/C
  • Power steering bracket requires modification
  • Requires 1/2-size radiator or tucked radiator set-up